+3  A: 

Hey, I just hit my head to the wall for two hours with this problem, until I realized I was using my Application Key instead of my Application Id. Once I fixed this it worked. Hope it helps

Daniel
A: 

My goodness, you beautiful person, I was doing the same thing. Thanks!

Now I have to figure out why passing 'scope' takes me to an error page... and leaving it out returns me a valid access token...

Nick Fenwick

related questions